<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>用户输入信息</title>
</head>

<body>
    <script>
        let money = parseInt(prompt("班长您接收多少钱?"));
        if (money >= 2000) {
            alert("请大家吃西餐");
        } else if (money >= 1500) {
            alert("请大家吃快餐");
        } else if (money >= 1000) {
            alert("请大家吃饮料");
        } else if (money >= 500) {
            alert("请大家吃棒棒糖");
        } else {
            alert("班长下次把钱带够");
        }
    </script>
</body>

</html>